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ADCs Operate To 250 MSamples/s

March 9, 2011

A line of single and dual-channel 14-b analog-to-digital converters (ADCs) from Linear Technology is ideal for intermediate-frequency (IF) applications at sampling rates to 250 MSamples/s. The converters feature low spurious-free dynamic range (SFDR) at frequencies to about 900 MHz, and are available with sampling rates of 170, 210, and 250 MSamples/s in single-channel (model LTC2152-14) a dual-channel (model LTC2157-14) versions. The ADCs operate from a single +1.8-VDC supply with the dual-channel unit consuming only 303 mW per channel at 250 MSamples/s. Both converter types feature a 1.25-GHz full-power sample-and-hold bandwidth, low-power sleep mode, and serial SPI port. They are available in 6 x 6 mm (single-channel) and 9 x 9 mm (dual-channel) QFN packages.

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.